Train control



Dec. 16, 1930. w, D L D 1,785,693

TRAIN CONTROL Filed March 19, 1929 Fle l. M R I y -o. 0-0 OO:1 r l ,L

I a G I FlG.-2.

ATTORNEY l atented Dec. 16 1936 "UNIT D STATES PATENT OFFICE I WIILBUR I). Group, on NEW YORK, N. Y., ASSIGNOR TO GENERAL nAILwAYsrGNAL j COMPANY, or ROCHESTER, NEW YORK TRAIN CONTROL 1 Application filed March 19, 1929. Serial 1T0. 348,204.

' This invention relates to train control systems of the intermittent inductive type,'and more particularly to a structure for adjustably supporting the track device or inductor used in such systems.

In certain types of intermittent inductive train control systems, it is important to maintain substantially the same working air gap at all times between the car-carried receiver and the various track devices or inductors along the track; and it becomes necessary from time to time to adjust the position of the inductor relative to the track rails, as wear I orjdisplacement of the rails or tics occurs,in

order to maintain this working alr gap.

The object of this invention is to provide a simple and efiicient means for enabling an inductor to be quickly and accurately adjusted,

' and for securely fastening the inductor in its adjusted position.

In the accompanying drawing, Fig. 1

shows in plan an inductor'supported on the ties adjacent to a track rail in accordance with this invention; and Fig. 2 1s an enlarged transverse section, with partsshown in elevation, taken on the line 22 of Fig. 1.

As illustrative of the invention, there has been shown an inductor or track device of the type shown and described, for example, in the patent to C. S. Bushnell, 1,580,467, dated April 13, 1926, which is adapted for use in an intermittent inductive train control system of the type shown and described, for example, in the patent to C. S. Bushnell, 1,686,434, dated October 2, 1928. The invention, however, may be used with other forms of inductors or track devices.

The inductor I, as shown in Fig. 1, is supported on the extended ends of two ties T-T parallel with the track rail R and outside of the two track rails. ,This'inductor I,

v is adjustably supported at two points at each end, or at each of its four corners, so to speak. The inductor I is supported in the same way at each end, and an explanation of the structureof the adjustable supporting means at one end will suffice for both.

Plates 1 are fastened to the ties T, and T I by lag screws 2. Two threaded studs 3 are firmly anchored to eachplate 1, as by welding their ends into tapered holes in saidplate. Oneach threaded stud 3 is screwed a supporting-"sleeve or collar 4, having an enlarged flange on'which rests an ear or lug 5 secured to or integral with the casing for the inductor I. The flange of the collar 4 is formed with faces so that it may be easily turned by a wrench. The outer periphery of the collar 4 is tapered, formed with screw threads, and provided with a radial slot 4 and on this threaded and tapered body of the collar 4 is a nut 6, which when turned down causes the collar 4 to grip the stud 3 tightly, thereby locking the parts in place. i

To adjust the inductor I to the proper height, relative'to the track rail R, as a suitable gauge isapplied, the nuts 6 are loosened,

and then the collars 4 are turned to raise or lower the corresponding corner of the inductor,'until the" inductor has been accurately positioned, whereupon the nuts 6 are turned down tightly against the ears or lugs 5 of the inductor casing, thereby clamping the collars 4 in their adjusted position, and rigidly holding the inductor in place.

t It will thus be seen that the adjustable inductor support provided by this invention permitsaccurate adjustment of the inductor, and at the same time assures that the inductor will be rigidly and permanently held in its adjusted position.

The specific structure shown and described is merely illustrative of the invention, and may be modified in many respects without departing from the invention.

lVhat I claim is 1. In an automatic train control system, the combination with an inductor and supporting ties therefor, of means for adjustably supporting, and fixing in adjusted position, said inductor at two points at each end.

2. A structure for adjustably supporting inductors for train control systems comprising, a pair of threaded studs fixed to ties under each end of the inductor, a collar threaded on each of said studs, ieans for clamping each collar in its various adjusted positions, and means on the inductor casing cooperating with said collars to support the inductor at two points at each end.

3. In a structure of the type described, in i combination With an inductor having a pair of'perforated lugs at each end, a pair of fixed threaded studs passing through said lugs at each end of the inductor, a collar threaded on eachof said studs and having a flange supporting the corresponding lug,'and a lug nut on each stud engaging the corresponding lug,

4. Adjustable supporting means for inductors comprising a'fixed threaded stud, a collar on sand stud having a tapered threaded portion formed With a radial slot, said collar having a flange for supporting. a lug on the inductor, and a lugnuton the tapered and threaded portion of said collar engaging said 7 lu xlf a 5. In an automatic train control system, the combination with an inductor and support-i ingties theretor,of'1neans for adj ustably supporting, and fixingjin adjusted position, said inductor at spaced points on the inductor.

6. In anautomatlc train control system, the

combination withan inductor and supporting ties therefor of means for adjustablysupporting, and nxing in adjusted position, said inductor at points/thereon defining a plane,

7. In a structure of the type described, in combination with an inductor having perforated lugs, fixed threaded studs passing through said lugs, a collar threaded on each.

v ofsaid studsand having a flange for support-- ing the corresponding lug, and a lug nut on each stud engaging the corresponding lugQ ,7 In testilnonywhereof I affix my signature. i WILBUR D. CLOUD. 

